<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图 -->
    <el-card>
      <!-- 2.为 ECharts 准备一个定义了宽高的 DOM -->
      <div id="main" style="width: 1630px; height: 400px"></div>
    </el-card>
  </div>
</template>

<script>
//1.导入echarts
//报错Cannot read properties of undefined (reading 'init')
//解决 https://blog.csdn.net/m0_45052521/article/details/124269944
import * as echarts from "echarts";
import _ from 'lodash'
export default {
  data() {
    return {
        //需要合并的数据
        options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      },
    };
  },
  created() {},
  //此时，页面上的元素已经被渲染完毕了
  async mounted() {
    // 3.基于准备好的dom，初始化echarts实例
    var myChart = echarts.init(document.getElementById("main"));
    const { data: res } = await this.$http.get("reports/type/1");
    if (res.meta.status !== 200) return this.$message.error("数据获取失败");

    // 4.准备数据和配置项
   /*  var option = {
      title: {
        text: "ECharts 入门示例",
      },
      tooltip: {},
      legend: {
        data: ["销量"],
      },
      xAxis: {
        data: ["衬衫", "羊毛衫", "雪纺衫", "裤子", "高跟鞋", "袜子"],
      },
      yAxis: {},
      series: [
        {
          name: "销量",
          type: "bar",
          data: [5, 20, 36, 10, 10, 20],
        },
      ],
    }; */
   const result= _.merge(res.data,this.options)
   // 5.展示数据
    myChart.setOption(result);
  },
  methods: {},
};
</script>

<style lang="less" scoped>
</style>